how do linux active the ppc405 cache?

Hi all, I have a question about cache activation on the Xilinx Virtex4 ML403 board. I know that PowerPC instruction and data caches have to be activated manually with the command XCache_EnableICache(); XCache_EnableDCache(); It works well with the standalone application, but how about it in

Re: [PATCH v2 0/4] net: Revive fixed link support

On Sat, Jul 18, 2009 at 12:04 PM, Anton Vorontsov wrote: > On Fri, Jul 17, 2009 at 01:31:25AM -0600, Grant Likely wrote: > [...] >> Part of the problem I think is that the phylib code merges two separate >> constructs; the construct of an MDIO bus (on which many device may >> reside, not all of the

Re: [PATCH v2 0/4] net: Revive fixed link support

On Fri, Jul 17, 2009 at 01:31:25AM -0600, Grant Likely wrote: [...] > Part of the problem I think is that the phylib code merges two separate > constructs; the construct of an MDIO bus (on which many device may > reside, not all of them PHYs), and the construct of an MII link whose > speed and conf

Re: Simple question about powerpc asm.

Wolfgang Denk wrote: Dear Valentine, In message <4a61a48d.8060...@ru.mvista.com> you wrote: PowerPC instructions are 32-bit long. So, there are only 16 bits available within the instruction for constant values. Since address can be up to 64 bits, we have to load it a piece at a time. The "@" w

[PATCH] viotape: Fix memory and semaphore leak

This patch fixes a memory and semaphore leak in the viotape driver's char device write op. It leaks the DMA memory and the semaphore lock in case the device was opened with O_NONBLOCK. This patch is only compile tested, because I do not have the hardware. Signed-off-by: Michael Buesch --- driv

Re: Simple question about powerpc asm.

Dear Valentine, In message <4a61a48d.8060...@ru.mvista.com> you wrote: > > PowerPC instructions are 32-bit long. So, there are only 16 bits > available within the instruction for constant values. Since address can > be up to 64 bits, we have to load it a piece at a time. The "@" within > the as

Re: [PATCH RFC 1/2] Makefile: Never use -fno-omit-frame-pointer

* Anton Vorontsov wrote: > On Wed, Jun 17, 2009 at 12:16:30AM +0400, Anton Vorontsov wrote: > > According to Segher Boessenkool and GCC manual, -fomit-frame-pointer > > is only the default when optimising on archs/ABIs where it doesn't > > hinder debugging and -pg. So, we do not get it by defaul

Re: Simple question about powerpc asm.

HongWoo Lee wrote: Hi all, I was reading kernel level source and found this macro. #define SET_REG_TO_LABEL(reg, label)\ lis reg,(label)@highest;\ ori reg,reg,(label)@higher; \ rldicr reg,reg,32,31; \

Re: [00/15] swiotlb cleanup

* FUJITA Tomonori wrote: > On Mon, 13 Jul 2009 13:20:22 +0900 > FUJITA Tomonori wrote: > > > On Fri, 10 Jul 2009 16:12:48 +0200 > > Ingo Molnar wrote: > > > > > > functionality and reimplemented the surrounding infrastructure in > > > > terms of that (and incorporating our additional requir

Simple question about powerpc asm.

Hi all, I was reading kernel level source and found this macro. #define SET_REG_TO_LABEL(reg, label)\ lis reg,(label)@highest;\ ori reg,reg,(label)@higher; \ rldicr reg,reg,32,31; \ orisreg,reg,